Parametrically set holes along a spiral pattern

diogo_duarte944

I have this drum made out of a polygonal shape to which I want to add holes which are centred on each face except they are offset along the length of the drum for each subsequent face. In a way it's like having a spiral (as marked in red) around the drum to guide the position of the holes (in blue).

The number of faces on the drum can be parametrically set, and so the number holes too.

EvanReese

@diogo_duarte944

I'm not sure exactly which variables you want control over, but there's a very "Onshapey" way to do this by patterning variable features. Here's an example. I'm essentially creating a "for loop" with variable features if that means anything to you. Since i use the "feature pattern" I'm able to make the variable called #i grow by 1 with each loop. Making other variables multiplied by #i, I can get them to grow by a specified step each time too.

EvanReese

@diogo_duarte944

I'm not sure exactly which variables you want control over, but there's a very "Onshapey" way to do this by patterning variable features. Here's an example. I'm essentially creating a "for loop" with variable features if that means anything to you. Since i use the "feature pattern" I'm able to make the variable called #i grow by 1 with each loop. Making other variables multiplied by #i, I can get them to grow by a specified step each time too.

john_mcclary

That was the most efficient way i've seen it done. That's how I do my spiral chutes too.

diogo_duarte944

I think I understand the principle, but I failed to manage incrementing the variable #i Any hints?

STEG

Evan_Reese said:

@diogo_duarte944

I'm not sure exactly which variables you want control over, but there's a very "Onshapey" way to do this by patterning variable features. Here's an example. I'm essentially creating a "for loop" with variable features if that means anything to you. Since i use the "feature pattern" I'm able to make the variable called #i grow by 1 with each loop. Making other variables multiplied by #i, I can get them to grow by a specified step each time too.

Link to example isn't working anymore...

EvanReese

@STEG try again. It ended up locked in our Enterprise after we converted, but I've moved it out and made it public again.